The app, which is exclusively available for free download on Apple's Bookstore worldwide from today (Friday), allows readers to tap their iPad, iPhone and iPod to images and sounds associated with the Fab Four's animated movie.

The book features an underwater dreamland containing animated illustrations and text, 14 full-colour video clips from the 1968 film, audio clips of Beatles tracks and Sir George Martin's score, original dialogue from the movie, "read aloud" functionality to follow the story as actor Dean ...